diff options
| author | Ingo Molnar <mingo@kernel.org> | 2020-11-27 13:09:57 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-11-27 13:10:50 +0300 |
| commit | a787bdaff83a085288b6fc607afb4bb648da3cc9 (patch) | |
| tree | ec389c1494ef4790ea90f65c4f86e523caf325d0 /drivers/vfio/fsl-mc/vfio_fsl_mc.c | |
| parent | 2914b0ba61a9d253535e51af16c7122a8148995d (diff) | |
| parent | 85a2c56cb4454c73f56d3099d96942e7919b292f (diff) | |
| download | linux-a787bdaff83a085288b6fc607afb4bb648da3cc9.tar.xz | |
Merge branch 'linus' into sched/core, to resolve semantic conflict
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/vfio/fsl-mc/vfio_fsl_mc.c')
| -rw-r--r-- | drivers/vfio/fsl-mc/vfio_fsl_mc.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c index 0113a980f974..f27e25112c40 100644 --- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c @@ -248,7 +248,9 @@ static long vfio_fsl_mc_ioctl(void *device_data, unsigned int cmd, info.size = vdev->regions[info.index].size; info.flags = vdev->regions[info.index].flags; - return copy_to_user((void __user *)arg, &info, minsz); + if (copy_to_user((void __user *)arg, &info, minsz)) + return -EFAULT; + return 0; } case VFIO_DEVICE_GET_IRQ_INFO: { @@ -267,7 +269,9 @@ static long vfio_fsl_mc_ioctl(void *device_data, unsigned int cmd, info.flags = VFIO_IRQ_INFO_EVENTFD; info.count = 1; - return copy_to_user((void __user *)arg, &info, minsz); + if (copy_to_user((void __user *)arg, &info, minsz)) + return -EFAULT; + return 0; } case VFIO_DEVICE_SET_IRQS: { @@ -468,7 +472,7 @@ static int vfio_fsl_mc_mmap(void *device_data, struct vm_area_struct *vma) { struct vfio_fsl_mc_device *vdev = device_data; struct fsl_mc_device *mc_dev = vdev->mc_dev; - int index; + unsigned int index; index = vma->vm_pgoff >> (VFIO_FSL_MC_OFFSET_SHIFT - PAGE_SHIFT); |